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Table 5 Experimental design for coinfection and postmortem examination

From: Secondary infection with Streptococcus suis serotype 7 increases the virulence of highly pathogenic porcine reproductive and respiratory syndrome virus in pigs

Group no. (n) Designation Treatment at age (dpi) Necropsy at age (dpi)
   0 d 7 d 7 d 14 d 21 d 28 d
1(8) Control    2 2 2 2
2(12) HP-PRRSV HuN4   2 4 3 3
3(10) SS7   WC0711 0 4 3 3
4(12) * HP-PRRSV+SS7 HuN4 WC0711 2 6 2 2
  1. *: Eight pigs in the coinfected group died of acute illness between days 10 and 13, as shown in Table 1, after WC0711 inoculation, and the remaining 2 pigs were necropsied on day 28.